| 摘要 |
PROBLEM TO BE SOLVED: To quickly restrain the retreat of a vehicle by increasing driving force of the vehicle when detecting a movement of the vehicle during actuating a brake holding device. SOLUTION: For example, when stepping of a brake pedal is loosened, and a vehicle retreats, the vehicle detects a retreat of the vehicle to issue an engine automatic starting command (F-ENGON). After a time lag due to a delay of signal communication and a mechanical system, an engine is automatically started to start pressure oil to a departing clutch. Then, a driving force rises by resistance of a pressing piston. The driving force gradually increases, and when a hydraulic fluid in an oil pressure chamber is filled, the driving force increases according to an oil pressure command value to become a strong creep state (F-SCRPON). During this time, a brake force gradually reduces to become a brake force according to stepping of the brake pedal, so that the sum of the increased driving force and holding brake force exceed a moving force by dead weight of the vehicle to restrain the retreat of the vehicle. |
